540 



Mittheilungen aus dem naturwissenschaftlichen Vereine von Neu-Vorpommem 



und Rügen in Greifswald. Red. von Th. Marsson. 13. Jahrg. Mit 2 Taf. 



Berlin, R. Gaertner'sVerlagsbuchh., 1882. S". (XXXV, 109 p.) »^ 3, 50. 

 Mittheilungen aus der Zoologischen Station zu Neapel etc. 3. Bd. 4. Hft. Mit 



2 Taf., 17 Holzschn. und 3 Tabell. Leipzig, Engelmann, 1882. 8^. 



./// 10, — . 

 Mittheilungen der Aargauischen Naturforschenden Gesellschaft. 3. Heft. Aarau, 



Sauerländer, 18S2. S«. (XLII, 196 p.) Ji 3, 20. 

 Öfversigt af kongl. Vetenskaps Akademiens lörhandlingar. 39 .Arg. No. 1/2. 



3. 4. Stockholm, 1882. &". 

 Periodico Zoologico. Organo de la Sociedad Zoològica Argentina. T. 3. 



Entr. 4. Cordoba, 1881. (Juli 1882). 8'>. 

 Précis analytique des Travaux de l'Académie des Sciences, belles-lettres et Arts 



de Eouen pendant l'année 1880 — 1881. Paris, Picard, 1882. 8«. (391 p.) 

 Proceedings of the Boston Society of Natural History. Vol. 21. P. III. Oct. 



1881— Jan. 1882. Boston, June 1882. 8«. 

 Proceedings of the Scientific Meetings of the Zoological Society of London for 



the year 1882. P. I. II. London 1882. 8«. 



(P. III. will appear Oct. 1., P. IV. Apr. 1882.) 



Index. 1871-1880. ibid. 1882. 8». (570 p.) 



List, a, of the Fellows etc. of the Zool. Soc. of London. Corrected to June, 



1, 1882. London, 1882. 8". 

 Proceedings of the United States National Museum. Vol. 4. 1881. Washing- 

 ton, 1882. 8". (534 p.) Vol.5. 1882. Sheet 1—20. (Plates not yet 



received.) 

 Eeport, Annual, of the Board of Eegents of the Smithsonian Institution . . for 



the year 1880. Washington, 1881. 8*^. (ree. June, 1882.) 

 Schriften der Naturforschenden Gesellschaft in Danzig. Neue Folge. 5. Bd. 



1. — 3. Hft. Danzig; Leipzig, Engelmann in Comm., 1882. 8^. (1. 2. 



XLVIII, 418 p., 3. XXXVIII, 308 p.) Ji 18. — . 



II. Wissenschaftliche Mittheilungen. 



1. On the Seg mental Organs of Polynoë. 



By William A. H a swell, M. A., B. Sc, Sidney. 



The position and relations of these organs have been entirely 

 misunderstood both by Williams and by Ehlers, and I find their 

 statements repeated in the latest comprehensive work on general 

 zoology 1 so that, though unable to obtain here all the literature of the 

 subject, I am justified in concluding that these errors have not yet been 

 corrected and explained. 



Ehlers'-^ in his remarks on the genus Polynoë states his opinion 

 »that Williams has seen the segmental organs ofthat Annelide only 



1 Pagenstecher 'a, Allgemeine Zoologie, Band IV. p. 47. (1881.) 



2 Die Borstenwürmer, p. 95. (1864—1868.) 



